tunable reflectarray cell for wide angle beam-steering radar applications
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2013
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Abstract
An electronically tunable reflectarray element is proposed in this work to design beam-steering antennas useful for radar applications. A reduced size reflectarray unit cell is properly synthesized in order to extend the antenna beam scanning capabilities within a wider angular region. The radiating structure is accurately optimized to provide a full phase tuning range by adopting a single varactor load as phase shifter element. A 0.46λ-reflectarray cell is designed at the frequency of 11.5 GHz, obtaining a phase agility of about 330°. The cell is successfully adopted for the design of a 21 × 21 reconfigurable reflectarray. The antenna is numerically tested for different configurations of the varactors capacitance values, and good beam-steering performances are demonstrated within a wide angular range.
| Reference Key |
venneri2013journaltunable
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|---|---|
| Authors | ;F. Venneri;S. Costanzo;G. Di Massa |
| Journal | Molecular diversity |
| Year | 2013 |
| DOI |
10.1155/2013/325746
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| URL | |
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